TY - JOUR
T1 - Quark mass and condensate in HQCD
AU - Bergman, Oren
AU - Seki, Shigenori
AU - Sonnenschein, Jacob
PY - 2007/12/1
Y1 - 2007/12/1
N2 - We extend the Sakai-Sugimoto holographic model of QCD (HQCD) by including the scalar bi-fundamental ''tachyon" field in the 8-brane-anti-8-brane probe theory. We show that this field is responsible both for the spontaneous breaking of the chiral symmetry, and for the generation of (current algebra) quark masses, from the point of view of the bulk theory. As a by-product we show how this leads to the Gell-Mann-Oakes-Renner relation for the pion mass.
AB - We extend the Sakai-Sugimoto holographic model of QCD (HQCD) by including the scalar bi-fundamental ''tachyon" field in the 8-brane-anti-8-brane probe theory. We show that this field is responsible both for the spontaneous breaking of the chiral symmetry, and for the generation of (current algebra) quark masses, from the point of view of the bulk theory. As a by-product we show how this leads to the Gell-Mann-Oakes-Renner relation for the pion mass.
KW - Gauge-gravity correspondence
KW - QCD
KW - Tachyon condensation
UR - http://www.scopus.com/inward/record.url?scp=38049047976&partnerID=8YFLogxK
U2 - 10.1088/1126-6708/2007/12/037
DO - 10.1088/1126-6708/2007/12/037
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AN - SCOPUS:38049047976
SN - 1126-6708
VL - 2007
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 12
M1 - 037
ER -